About the Authors

Li Yu

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Li Zhang

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Lina Sun

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Jing Lu

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Wei Wu

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Chuan Li

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Quanfu Zhang

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Fushun Zhang

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Cong Jin

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Xianjun Wang

Affiliation Shandong Key Laboratory for Infectious Disease Prevention and Control, Shandong Province CDC, Jinan Shandong, China

Zhenqiang Bi

Affiliation Shandong Key Laboratory for Infectious Disease Prevention and Control, Shandong Province CDC, Jinan Shandong, China

Dexin Li

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Mifang Liang

mifangl@vip.sina.com

Affiliation Laboratory Institute for Viral Disease Control and Prevention, China CDC, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MFL ZQB DXL. Performed the experiments: LY LZ JL WW CL QFZ FSZ XJW. Analyzed the data: LY LS MFL. Contributed reagents/materials/analysis tools: MFL CL. Wrote the paper: LY CJ MFL.